Finding the Third Proportional to 133,173 and 286,109.50

Step by Step Solution

1. Step 1: Write the proportion equation
   133,173 : 286,109.50 = 286,109.50 : x
2. Step 2: Convert to fraction form
   133,173/286,109.50 = 286,109.50/x
3. Step 3: Cross multiply
   133,173x = 286,109.50 × 286,109.50
4. Step 4: Simplify right side
   133,173x = 81,858,645,990.25
5. Step 5: Solve for x
   x = 81,858,645,990.25/133,173
6. Step 6: Final answer
   x = 614,679.00